Seiko Cal. 7021 - 340

The 7021-340 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-ad209ce7d6f2]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1976

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